NABI IS RECALLING 579 MY 2005-2007 60BRT MODEL YEAR 2007 65BRT AND MY 2003-2004 60LFW TRANSIT BUSES. THESE BUSES MAY CONTAIN A DEFECTIVE WELDED CROSSMEMBER ASSEMBLY IN THE UNDERSTRUCTURE. THIS CROSSMEMBER IS A WELDED ASSEMBLY THAT INCLUDES A STEEL CHANNEL WELDED TO THE ARTICULATED JOINT CASTING AT THE FRONT TRAILER SECTION OF THE BUS. UNDER CERTAIN CONDITIONS, THIS WELD MAY CRACK AND THE WELDED CROSSMEMBER ASSEMBLY MAY BEGIN TO SEPARATE. ONCE PARTIAL SEPARATION OCCURS, THE CENTER PORTION OF THE BUS IN THE AREA OF THE FRONT OF THE TRAILER MAY DROP. IF THIS CONDITION IS UNDETECTED, ADDITIONAL SEPARATION OF THE JOINT MAY OCCUR UNTIL THE FRONT SECTION OF THE TRAILER CONTACT THE ROAD SURFACE.
Consequence & remedy
Consequence: THIS COULD RESULT IN LOSS CONTROL OF THE BUS INCREASING THE RISK OF A CRASH. THIS COULD ALSO RESULT IN A LOSS OF ELECTRICAL POWER AND ENGINE CONTROLS. THIS LOSS OF ELECTRICAL POWER AND ENGINE CONTROLS MAY RENDER THE VEHICLE STALLED IN A ROADWAY. ADDITIONALLY, THE FLOOR INSIDE THE VEHICLE WILL BECOME UNEVEN POSING A RISK TO PASSENGERS IN THE VEHICLE.
Remedy: DEALERS WILL INSPECT AND REPAIR INCLUDING INSTALLATION OF AN ADDITIONAL REINFORCEMENT TO THE AFFECT JOINT. THIS REPAIR WILL BE PERFORMED FREE OF CHARGE. THE RECALL BEGAN ON APRIL 30, 2009. OWNER MAY CONTACT NABI AT 1-888-391-1777.
ON CERTAIN TRANSIT BUSES, THE FRONT AXLE STOPS AND THE POWER STEERING GEAR HYDRAULIC LIMIT VALVES WERE FOUND TO BE OUT OF ADJUSTMENT. THE DRAG LINK MAY EXPERIENCE PERMANENT DEFORMATION DUE TO THE STEERING LOAD.
Consequence & remedy
Consequence: DURING LONG TERM OPERATION INVOLVING REPEATED FLEXING OF THE DRAG LINK, IT MAY EVENTUALLY CRACK AND BREAK. THE DRIVER WILL NO LONGER HAVE STEERING CONTROL OF THE VEHICLE AND A CRASH COULD OCCUR CAUSING INJURY OR DEATH.
Remedy: DEALERS WILL INSPECT AND REPLACE THE DRAG LINKS WITH A STRONGER DRAG LINK. DEALERS WILL ALSO INSPECT THE STEERING GEAR HYDRAULIC LIMIT VALVE SETTINGS. THE RECALL BEGAN ON MAY 16, 2005. OWNERS MAY CONTACT NABI AT 256-831-4296.
CERTAIN TRANSIT BUSSES EQUIPPED WITH TIE ROD CLAMPS, HEAT TREATMENT OF CLAMPS CREATED A SURFACE HARDNESS THAT COULD LEAD TO A FRACTURE OF THE CLAMPS.
Consequence & remedy
Consequence: IN THE EVENT OF A CRACK THE CLAMPS COULD BREAK OFF AFFECTING TOE-IN AND ALIGNMENT. THE TIE ROD CAN COME LOOSE RESULTING IN STEERING LOSS AND A CRASH COULD OCCUR WITHOUT PRIOR WARNING.
Remedy: ARVINMERITOR IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. OWNERS MAY CONTACT ARVINMERITOR AT 1-866-668-7221 OR NABI AT 888-424-5844 EXT.7900.
ON CERTAIN 40' AND 60' TRANSIT BUSES, THE HYDRAULIC SYSTEM THAT PROVIDES POWER TO THE RADIATOR COOLING FAN AND POWER STEERING SYSTEM IS SUBJECT TO BECOMING UNSTABLE.
Consequence & remedy
Consequence: WHEN THIS OCCURS, THE DRIVER WILL BE SUBJECTED TO HARD TURNING OF THE STEERING WHEEL AND LOSS OF POWER ASSIST IN THE STEERING SYSTEM, INCREASING THE RISK OF A CRASH.
Remedy: NABI IS CONDUCTING THE OWNER NOTIFICATION AND EATON CORPORATION WILL PERFORM THE REMEDY FOR THIS CAMPAIGN. EATON WILL INSPECT AND REPAIR THE HYDRAULIC SYSTEM. THE RECALL BEGAN MARCH 20, 2005. OWNERS SHOULD CONTACT EATON AT 952-967-7168 OR NABI AT 1-888-424-5844.
CERTAIN TRANSIT BUSES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 217, "BUS EMERGENCY EXITS AND WINDOW RETENTION AND RELEASE." THERE IS INTERFERENCE BETWEEN THE SIDE DESTINATION SIGN AND THE WINDOW FRAME THAT WILL NOT ALLOW THE WINDOW TO OPEN SUFFICIENTLY.
Consequence & remedy
Consequence: DURING AN EMERGENCY SITUATION, THE FIRST EMERGENCY EGRESS WINDOW LOCATED ON THE CURB SIDE OF THE VEHICLE, IMMEDIATELY BEHIND THE ENTRANCE DOOR, WILL NOT OPEN SUFFICIENTLY TO ALLOW A PERSON TO ESCAPE IN THE EVENT OF AN EMERGENCY, WHICH COULD CAUSE PERSONAL INJURY OR DEATH.
Remedy: NABI WILL INSPECT AND RELOCATE THE SIDE DESTINATION SIGN TO ELIMINATE THIS INTERFERENCE. THE RECALL BEGAN AUGUST 27, 2004. OWNERS MAY CONTACT NABI AT 1-888-424-5844, EXT. 7900.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
PE09018 · Weld Separation
Opened Apr 1, 2009 · Closed May 8, 2009
Status: closed (inferred from source dates) · Structure:frame And Members
THIS INVESTIGATION WAS OPENED AS THE RESULT OF A REPORT ALLEGING THAT AN ARTICULATING BUS OWNED BY THE CHICAGO TRANSIT AUTHORITY (CTA) HAD EXPERIENCED A WELD FAILURE AT THE ARTICULATION JOINT OF THE BUS.IN EARLY APRIL, ODI AND VRTC ENGINEERS VISITED WITH THE CTA AND CONFIRMED THE FAILURE ALLEGATION. THE SEPARATION OF THE NABI ARTICULATING BUS WAS THE RESULT OF A WELD FAILURE THAT OCCURRED IN THE PARENT METAL OF THE ROLLED PLATE BRACKET. THE FRACTURE OCCURRED JUST BEYOND THE WELD LINE WHERE THE BRACKET IS WELDED TO THE ARTICULATING JOINT CASTING.THE FATIGUE FRACTURE APPEARED TO BE CAUSED BY TORSIONAL FORCE LOADING THROUGH THE JOINT CONFIGURATION.BENDING MOMENT FATIGUE INITIATED THE FRACTURE CAUSED BY FORE AND AFT ROTATIONAL LOADING THAT COULD BE GENERATED BY, AMONG OTHER FORCES, BOTH POSITIVE AND NEGATIVE WHEEL TORQUE (ACCELERATION AND BRAKING).A VISUAL EVALUATION OF THE SURROUNDING STRUCTURE SUGGESTS THAT SEVERAL WELDED MEMBERS FORM A BOX BEAM AND ARE INTENDED TO REACT TO THE TORQUE AND PREVENT THE MAIN STRUCTURAL WELD FROM BENDING, BUT THE UN-REINFORCED MATERIALS APPEAR TO BE INADEQUATE FOR THE FORCES GENERATED IN THIS APPLICATION. ON APRIL 16, 2009, NABI IDENTIFIED A DEFECTIVE WELDED CROSSMEMBER ASSEMBLY IN THE UNDERSTRUCTURE OF THESE BUSES.AFTER FURTHER EVALUATION, NABI DECIDED TO FILE A DEFECT REPORT WITH THE AGENCY. NABI WILL ARRANGE TO INSPECT AND REPAIR ALL AFFECTED BUSES, INCLUDING INSTALLATION OF ADDITIONAL REINFORCEMENT TO THE AFFECTED AREAS.THIS RECALL ACTION RESOLVES THE ISSUES RAISED BY THIS INVESTIGATION. ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
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